151 lines
4 KiB
Elixir
151 lines
4 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.BBS.Handler do
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use Sshd.ShellHandler
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alias Pleroma.Activity
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alias Pleroma.HTML
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alias Pleroma.Web.ActivityPub.ActivityPub
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alias Pleroma.Web.CommonAPI
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def on_shell(username, _pubkey, _ip, _port) do
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:ok = IO.puts("Welcome to #{Pleroma.Config.get([:instance, :name])}!")
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user = Pleroma.User.get_cached_by_nickname(to_string(username))
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Logger.debug("#{inspect(user)}")
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loop(run_state(user: user))
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end
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def on_connect(username, ip, port, method) do
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Logger.debug(fn ->
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"""
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Incoming SSH shell #{inspect(self())} requested for #{username} from #{inspect(ip)}:#{
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inspect(port)
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} using #{inspect(method)}
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"""
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end)
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end
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def on_disconnect(username, ip, port) do
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Logger.debug(fn ->
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"Disconnecting SSH shell for #{username} from #{inspect(ip)}:#{inspect(port)}"
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end)
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end
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defp loop(state) do
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self_pid = self()
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counter = state.counter
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prefix = state.prefix
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user = state.user
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input = spawn(fn -> io_get(self_pid, prefix, counter, user.nickname) end)
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wait_input(state, input)
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end
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def puts_activity(activity) do
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status = Pleroma.Web.MastodonAPI.StatusView.render("show.json", %{activity: activity})
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IO.puts("-- #{status.id} by #{status.account.display_name} (#{status.account.acct})")
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IO.puts(HTML.strip_tags(status.content))
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IO.puts("")
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end
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def handle_command(state, "help") do
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IO.puts("Available commands:")
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IO.puts("help - This help")
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IO.puts("home - Show the home timeline")
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IO.puts("p <text> - Post the given text")
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IO.puts("r <id> <text> - Reply to the post with the given id")
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IO.puts("quit - Quit")
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state
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end
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def handle_command(%{user: user} = state, "r " <> text) do
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text = String.trim(text)
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[activity_id, rest] = String.split(text, " ", parts: 2)
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with %Activity{} <- Activity.get_by_id(activity_id),
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{:ok, _activity} <-
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CommonAPI.post(user, %{"status" => rest, "in_reply_to_status_id" => activity_id}) do
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IO.puts("Replied!")
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else
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_e -> IO.puts("Could not reply...")
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end
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state
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end
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def handle_command(%{user: user} = state, "p " <> text) do
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text = String.trim(text)
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with {:ok, _activity} <- CommonAPI.post(user, %{"status" => text}) do
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IO.puts("Posted!")
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else
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_e -> IO.puts("Could not post...")
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end
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state
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end
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def handle_command(state, "home") do
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user = state.user
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params =
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%{}
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|> Map.put("type", ["Create"])
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|> Map.put("blocking_user", user)
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|> Map.put("muting_user", user)
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|> Map.put("user", user)
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activities =
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[user.ap_id | Pleroma.User.following(user)]
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|> ActivityPub.fetch_activities(params)
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Enum.each(activities, fn activity ->
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puts_activity(activity)
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end)
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state
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end
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def handle_command(state, command) do
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IO.puts("Unknown command '#{command}'")
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state
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end
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defp wait_input(state, input) do
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receive do
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{:input, ^input, "quit\n"} ->
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IO.puts("Exiting...")
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{:input, ^input, code} when is_binary(code) ->
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code = String.trim(code)
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state = handle_command(state, code)
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loop(%{state | counter: state.counter + 1})
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{:error, :interrupted} ->
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IO.puts("Caught Ctrl+C...")
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loop(%{state | counter: state.counter + 1})
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{:input, ^input, msg} ->
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:ok = Logger.warn("received unknown message: #{inspect(msg)}")
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loop(%{state | counter: state.counter + 1})
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end
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end
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defp run_state(opts) do
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%{prefix: "pleroma", counter: 1, user: opts[:user]}
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end
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defp io_get(pid, prefix, counter, username) do
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prompt = prompt(prefix, counter, username)
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send(pid, {:input, self(), IO.gets(:stdio, prompt)})
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end
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defp prompt(prefix, counter, username) do
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prompt = "#{username}@#{prefix}:#{counter}>"
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prompt <> " "
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end
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end
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